DATAAlerting is an app that monitors your incoming and outgoing data connection and alerts you with a loud piezoelectric siren when there is any data flow. You can use this when you travel to prevent from incurring roaming fees or when you want to make sure that you do not connect to any type of network
DATAPercents is an app that monitors your data download and upload packets and reports your download percentage. You can use this if you want to monitor your data if you suspect there is a Trojan on your mobile device. The lower the percentage the more probability of a Trojan
DATAIndicator monitors your download/upload packets and reports it on the top upper right of any working Windows Mobile app. The program checks the data in real time and displays while the other applications are running. You can use this to view your network usage in another program
DATAMetering - DATAMetering monitors data traffic on your Windows Mobile device and reports the sum of all traffic in packets. The data can include 3g networks, ActiveSync etc. You can use this to inspect your phone to find out if there is any data leaks on your device
easySMS (Pocket PC) - Texting with the standard Windows Mobile SMS interface is not always very convenient. The text is very small and hard to read in many cases. Replying or sending a new text message by using the stylus and the tiny onscreen keyboard can be a real pain and is just impossible in situations where you don't have both hands free
MiniStumbler is a Swiss Army Knife for Pocket PCs equipped with a WiFi connection: this handy program lets you search for available wireless networks compatible with the WiFi connection of your Pocket PC.
This is otherwise known as a "sniffer"
Maufait InstaFind (Windows Mobile) - Maufait is a free personalized mobile content service that offers instant access to information you need anytime, anywhere.
Maufait is very ideal if you are on the go or if you like to have access information at your fingertip all the time